W91590 Datasheet, PDF (13/20 Pages) Winbond – 24-MEMORY TONE/PULSE SWITCHABLE DIALER WITH HANDFREE, HOLD AND LOCK FUNCTIONS

W91590 SERIES
DC CHARACTERISTICS
(VDD−VSS = 2.5V, FOSC. = 3.58 MHz, Ta = 25° C, all outputs unloaded)
PARAMETER
SYM.
CONDITIONS
MIN. TYP. MAX. UNIT
Operating Voltage
VDD
2.0 -
5.5
V
Operating Current
IOP Tone
- 0.3 0.5 mA
Pulse
- 0.15 0.3
Standby Current
ISB _{HKS = 0,}
No load & No key entry
-
-
15
µA
Memory Retention Current IMR _{HKS = 1, VDD = 1.0V}
-
-
0.2 µA
DTMF Output Voltage
Pre-emphasis
VTO Row group, RL = 5K
130 150
- ^{Col/Row, VDD = 2.0 to 5.5V} 1
2
170 VrmS
3
dB
DTMF Distortion
DTMF Output DC Level
DTMF Output Sink Current
THD
VTDC
ITL
RL = 5 KΩ, VDD = 2.0 to
5.5V
RL = 5 KΩ, VDD = 2.0 to
5.5V
VTO = 0.5V
- -30 -23 dB
1.0 -
3.0
V
0.2 -
-
mA
DP Output Sink Current
IPL VPO = 0.5V
0.5 -
-
mA
T/P MUTE Output Sink
Current
IML VMO = 0.5V
0.5 -
-
mA
HPM MUTE Output Sink
Current
IHPML VTO = 0.5V
0.5 -
-
mA
HPM MUTE Output drive
Current
IHPMH VTH = 2.0V
0.5 -
-
mA
HKS I/P Pull High Resistor ^RKH
- 300 500 KΩ
Key Tone Output Current
IKTH VKTH = 2.0V
0.5 -
-
mA
IKTL VKTH = 0.5V
0.5 -
-
HFO Drive/Sink Current
IHFH VHFH = 2.0V
0.5 -
-
mA
IHFL VHFL = 0.5V
0.5 -
-
Keypad Input Drive Current IKD VI = 0V
30
-
-
µA
Keypad Input Sink Current IKS VI = 2.5V
200 400
-
µA
Keypad Resistance
-
-
5.0 KΩ
- 13 -
Publication Release Date: July 1995
Revision A3